diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/primitiveProto.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/primitiveProto.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,24 @@
+
+function fna() {}
+fna.prototype = undefined;
+new fna;
+
+function fnb() {}
+fnb.prototype = null;
+new fnb;
+
+function fnc() {}
+fnc.prototype = 3;
+new fnc;
+
+function fnd() {}
+fnd.prototype = true;
+new fnd;
+
+function fne() {}
+fne.prototype = "foo";
+new fne;
+
+function fnf() {}
+fnf.prototype = /foo/;
+new fnf;